EECS 1 Homework 4
Due in class Wednesday Feb. 25, 2004
Read Ch. 4 (Meaningless Precision – and think about what it implies if you’re given a
circuit to solve in which resistor and voltage source values have only two significant
figures); Sec. 16.1 (“If the machine is so smart, why do I feel so dumb?”); Secs. 20.1 –
20.6; and Ch. 26 (Load Line).
Problem 1. Prob. 16.1
Prob. 2 Prob. 19.45 (this problem involves load lines, which are discussed in Ch. 26).
Prob. 3. Prob. 19.46. This problem involves a nonlinear circuit element – a flashlight
whose resistance changes when it is lighted. In such circuit problems, a graphical
approach is the easiest way to solve the problem.
Prob. 4 What is the rms voltage of the rectangular waveform shown in Fig. 20.6?
Prob. 5. Prob. 20.5 (camera electronic flash).
Prob. 6. Prob. 20.6 (initial current when charging an initially uncharged capacitor). In
other words, what would the initial currents be that you would use to find the equation
that describes the entire charging cycle. Also, what is the current at infinite time in each
case?